Very good value for money. The place is literally a 3-minute walk from the MRT, it was clean, with good wifi, a comfortable bed (not too soft, not too hard), and a nice-sized bathroom with ample hot water pressure. It's also great to have a full kitchen with pots, plates and cutlery. The rooftop is nice, with a small gym area, and hardly anybody uses it. I caught a great sunset there.
Communication with the host was super easy and he replies fast to messages. The host is a really helpful and friendly guy. He can give you lots of recommendations and pointers about Bangkok if you need. The condo security guys were very friendly too.
The only negative was that there was construction noise from the canal across the street from the condo, but I think they were winding down the work by early January.